Lever mechanism.



No. 709,807. Patentedsept. 23, |902. M. J. TODD.

LEyER MECHANISM. (.Appxicatiun mea sept. 25, 1901.)

'(No Model.)

1n: cams Pnzns co. Moro-urne.. wumuacn. D.

UNITED STATES PATENT OEEICE.

MARQUIS J. TODD, OF BUFFALO, NEW YORK, ASSIGNOR TO BUFFALO PITTSCOMPANY, OF BUFFALO, NEW YORK, A CORPORATION OF NEW YORK.

LEVER NIECHANISNI.

SPECIFICATION forming part of Letters Patent No. 709,807, datedSeptember 23, 1902.

' Application filed September 25, 1901. Serial No. 76,481. (No model.)

To a/ZZ whom, it 1v1/Cty concern:

Be it known that I, MARQUIS J. TODD, of Buffalo, in the county of Erieand State of New York, have invented certain new and 5 usefulImprovements in Lever Mechanism; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make andxo use the same.

This invention contemplates certain new and usefulimprovementsinlevermechanism.

The object of this invention is to provide simple and inexpensivemechanism whereby each of two levers may be operated independently ofthe other and both may bc moved simultaneously by the manipulation of asingle lever.

The invention will be hereinafter' fully set 2o forth, and particularlypointed out in the claims.

In the accompanying drawings, Figure l shows the general outline of adisk harrow equipped with my improvements. Fig. 2 is an enlarged view,in side elevation, showing one lever adj usted independently of theother. Fig. 3 is a similar view showing a like adjustment of the otherlever. Fig. 4L is a longitudinal sectional view.

Y 3o Referring to the drawings, wherein my improvement is shown asapplied to a disk harrow, l and 2 designate two levers having a commonfulcrum 3, (or they vmay have independent fulcra in axial line,) thelevers being shown as passed through the harrowtongue 4. At their lowerends the levers are 'shown as being separately connected byadjusting-bars 5 to the disk gangs.

'On the main lever lis a movable dog G, un-

4o der the control of an ordinary hand device 7, such dog by engagingwith the stationary toothed segment S on tongue 4 locking lever l to thetongue. A second toothed segment 9 is mounted on lever l for holding thesec- 0nd lever 2in any position to which it may be adjusted. Thissegment is shown as having a guiding-bar l0, against which bears aplatespring 12, the tension of which serves to hold the dog 13 on theopposite side of lever 2 in engagement with the teeth of the segment. 5oWith the construction shown by bearing laterally on lever 2 the tensionof spring l2 is overcome, and dog 13 will be disengaged from the toothedsegment to permit of the adjustment of such lever, and upon releasingthe lateral pressure on lever 2 the dog will irnmediately rengage thesegment, and lever 2 will be held firmly in its adjusted position.

From what has been said it will be seen that upon releasing dog 6 fromsegment 8 le- 6o ver l may be moved forward or rearward.

If lever 2 is in locked engagement with lever l, both levers will bemoved simultaneously.

If, however, it be desired to move only lever l, the operator releaseslever 2 from engage- 65 ment with lever l and holds the former while thelatter is being adjusted. On the other hand, when it is desired to aloneadjust lever 2 lever l remains locked, While lever 2 is thrown out ofengagement with lever l and 7o moved to the desired position. It isobvious that in so far as concerns adjustment of lever l independentlyof lever 2 both elements may remain locked together when being adjusted,and When the desired position is secured for lever l the other lever maybe moved independently.

The advantages of the invention are apparent to those skilled in theart.

Although I have described my improve- 8o mentsas being especiallyapplicable to disk harrows, yet it is obvious that the invention is notto be restricted to this use.

I claim as my inventionl. The combination with a main lever, of a levermounted on one side of and carried by said main lever, said second leverhaving a tooth on one side, means for holding the main lever, and asegmental rack mounted on such main lever With which the tooth of the 9:other lever engages, said latter lever being movable laterally awayrfromthe main lever to disengage the toothfrom such segmental rack, as setforth.

2. The combination with a main lever, of a lever mounted on one side ofand carried by said main lever, said second lever having a tooth on oneside, means for holding the main lever, :L segmental rack on one side ofIn testimony whereof I have signed this such main lever, having: aguide-bar parspecification in the presence of two subscriballeitherewith, the other lever being moving Witnesses.

able between such rack and guide-bar, and a MARQUIS J. TODD. 5 springbearing against the guide-bar foll hold- Witnesses:

ing the tooth of the lever in engagement with A. B. SPRAGUE,

such mok, substantially as set forth. JOHN B. OLMSTED.

